How to Enable or Disable Microsoft Store Apps Open Files in Default Desktop App in Windows 10

If you like, you can configure a group policy setting that lets you control whether Microsoft Store apps can open files using the default desktop app for a file type. Because desktop apps run at a higher integrity level than Microsoft Store apps, there is a risk that a Microsoft Store app might compromise the system by opening a file in the default desktop app for a file type.

If you enable this policy setting, Microsoft Store apps cannot open files in the default desktop app for a file type; they can open files only in other Microsoft Store apps.

If you disable or do not configure this policy setting, Microsoft Store apps can open files in the default desktop app for a file type.

This tutorial will show you how to enable or disable Microsoft Store apps from being able to open files in the default desktop app for a file type for all users in Windows 8 and Windows 10.